#include<iostream>
#include<unistd.h>
int main()
{
    printf("hello word\n");
    printf("hello word\n");
    printf("hello word\n");
    printf("hello word\n");
    printf("hello word\n");
    sleep(20);
    printf("hello word\n");
    printf("hello word\n");
    printf("hello word\n");
    int a = 10;
    a = a / 0;
    printf("hello word\n");
    printf("hello word\n");
    printf("hello word\n");
    printf("hello word\n");
    printf("hello word\n");
    printf("hello word\n");
    printf("hello word\n");
    printf("hello word\n");
    return 0;
}